Physics Practice: Energy (Mock Test 2 - Intermediate)
1. If the velocity of a body is doubled, its Kinetic Energy becomes:
2. Gravitational Potential Energy ($U$) of an object at a height $h$ is given by the formula:
3. When a body falls freely from a height, its potential energy gradually changes into:
4. A steam engine converts ________ energy into mechanical energy.
5. Which of the following is a renewable source of energy?
6. The energy transformation in a microphone is:
7. A stretched rubber band possesses ________ energy.
8. Solar heaters use ________ energy of the Sun to heat water.
9. $1 \text{ kWh}$ is equal to ________ Joules.
10. At the mean position of a simple pendulum, it has maximum ________ energy.
11. In a hydroelectric power plant, the kinetic energy of turbines is converted into:
12. Wind energy is used to rotate the blades of a ________ to generate electricity.
13. Nuclear energy is released during the process of:
14. When two palms are rubbed together, mechanical energy is converted into:
15. Wood is a ________ source of energy.
16. Fossil fuels like coal were formed from ________ buried millions of years ago.
17. A car engine converts the ________ energy of petrol into mechanical energy.
18. Tidal energy is the energy of ocean ________.
19. Which form of energy travels in the form of electromagnetic waves?
20. The rate at which work is done is called ________.